KVM宿主机占用缓存较大，hcache可能无法定位？ #3
Description
1、服务器为KVM宿主机，启动了多个KVM虚拟机。
free -h
total used free shared buff/cache available
Mem: 251G 67G 770M 4.1G 183G 179G
Swap: 0B 0B 0B
2、 以下是./hcache --top 10 ，但是缓存占用在183G,其中是不是有其他比较大的文件缓存，但是通过hcache无法确认？有没有办法确认cache中的内容，谢谢。
3、/proc/meminfo信息
MemTotal: 263566160 kB
MemFree: 2093520 kB
MemAvailable: 169410064 kB
Buffers: 0 kB
Cached: 168794964 kB
SwapCached: 604572 kB
Active: 160983136 kB
Inactive: 94351416 kB
Active(anon): 78603948 kB
Inactive(anon): 8031548 kB
Active(file): 82379188 kB
Inactive(file): 86319868 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 15204348 kB
SwapFree: 13583428 kB
Dirty: 20 kB
Writeback: 0 kB
AnonPages: 85955084 kB
Mapped: 63308 kB
Shmem: 95256 kB
Slab: 4086124 kB
SReclaimable: 3335448 kB
SUnreclaim: 750676 kB
KernelStack: 9584 kB
PageTables: 181892 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 146987428 kB
Committed_AS: 90918056 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 901844 kB
VmallocChunk: 34224481256 kB
HardwareCorrupted: 0 kB
AnonHugePages: 79038464 kB
CmaTotal: 0 kB
CmaFree: 0 kB
HugePages_Total: 0